The ebuild has a "soundtouch" USE flag but ignores it. In particular, the ebuild has an unconditional RDEPEND on media-libs/libsoundtouch and also unconditionally sets -Daudacity_use_soundtouch=system.
alike +lame USE flag, bug 735754 Thks 4 ur attention, interest & support.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5d8454d1cb7a5c86888ac51d5ebeff254ea050fd commit 5d8454d1cb7a5c86888ac51d5ebeff254ea050fd Author: Miroslav Šulc <fordfrog@gentoo.org> AuthorDate: 2020-08-04 06:46:58 +0000 Commit: Miroslav Šulc <fordfrog@gentoo.org> CommitDate: 2020-08-04 06:47:11 +0000 media-sound/audacity: use flags cleanup in 2.4.2-r1 Closes: https://bugs.gentoo.org/735574 Package-Manager: Portage-3.0.1, Repoman-2.3.23 Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org> media-sound/audacity/audacity-2.4.2-r1.ebuild | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)